//
//  VisitorLoginView.swift
//  微博模拟项目
//
//  Created by 尹家鑫 on 16/3/12.
//  Copyright © 2016年 尹家鑫. All rights reserved.
//

import UIKit
import SnapKit

//声明协议
@objc protocol VisitorLoginViewDelegate: NSObjectProtocol {
    
    //声明协议方法，可选的协议方法
    optional func userWillRegister()
    
    //登录的协议方法
    func userWillLognin()
}


class VisitorLoginView: UIView {
    
    var didClickBlock: (() -> ())?
    
    //声明代理对象：代理的声明在OC中必须使用weak/assagin，为了防止循环引用
    weak var visitorDelegate: VisitorLoginViewDelegate?
    
    //MARK: 外部调用的方法
    func setupInfoWith(title: String, imageName: String?) {
        tipLabel.text = title
        
        if imageName != nil {
            
            //不是首页
            circleIcon.image = UIImage(named: imageName!)
           
            //隐藏大房子
            largeHouse.hidden = true
            
            //设置不是渐隐
            bringSubviewToFront(circleIcon)
        } else {
          
            //让圈圈开始转动
            startAnimation()
        }
        
    }
    
    private func startAnimation() {
        let anim = CABasicAnimation(keyPath: "transform.rotation")
        anim.repeatCount = MAXFLOAT
        anim.duration = 10
        anim.toValue = 2 * M_PI
        
        //默认就是移除动画
        anim.removedOnCompletion = false
        
        //添加到图层
        circleIcon.layer.addAnimation(anim, forKey: nil)
    }
    
    //要自定义视图，首先找到入口
    override init(frame: CGRect) {
        
        //super
        super.init(frame: frame)
        
        //访客视图的自定义
        setUpUI()
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    //MARK:自定义访客视图
    private func setUpUI() {
        
        addSubview(circleIcon)
        addSubview(maskImage)
        addSubview(largeHouse)
        addSubview(tipLabel)
        addSubview(loginBtn)
        addSubview(registerBtn)
        
        circleIcon.snp_makeConstraints { (make) -> Void in
            make.centerX.equalTo(self.snp_centerX)
            make.centerY.equalTo(self.snp_centerY).offset(-80)
        }
        
        largeHouse.snp_makeConstraints { (make) -> Void in
            make.center.equalTo(circleIcon.snp_center)
        }
        
        tipLabel.snp_makeConstraints { (make) -> Void in
            make.centerX.equalTo(circleIcon.snp_centerX)
            make.top.equalTo(circleIcon.snp_bottom).offset(16)
            make.width.equalTo(230)
            make.height.equalTo(40)
        }
        
        loginBtn.snp_makeConstraints { (make) -> Void in
            make.left.equalTo(tipLabel.snp_left)
            make.top.equalTo(tipLabel.snp_bottom).offset(16)
            make.width.equalTo(100)
            
        }
        
        registerBtn.snp_makeConstraints { (make) -> Void in
            make.right.equalTo(tipLabel.snp_right)
            make.top.equalTo(tipLabel.snp_bottom).offset(16)
            make.width.equalTo(100)
        }
        
        maskImage.snp_makeConstraints { (make) -> Void in
            make.center.equalTo(circleIcon.snp_center)
        }
        
        
        let value: CGFloat = 236.0 / 255.0
        backgroundColor = UIColor(red: value, green: value, blue: value, alpha: 1)
        
        
        //添加按钮的点击事件
        loginBtn.addTarget(self, action: "loginBtndidClick", forControlEvents: .TouchUpInside)
        registerBtn.addTarget(self, action: "registerBtndidClick", forControlEvents: .TouchUpInside)
        
    }
    
    //MARK:按钮的监听事件
    @objc private func loginBtndidClick() {
        print(__FUNCTION__)
        
        //执行闭包
        visitorDelegate?.userWillLognin()
        
    }
    
    @objc private func registerBtndidClick() {
        print(__FUNCTION__)
        visitorDelegate?.userWillRegister?()
    }
    
    
//懒加载子视图
    //遮罩视图
    private lazy var maskImage: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_mask_smallicon"))
    private lazy var circleIcon: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_smallicon"))
    
    //大房子
    private lazy var largeHouse: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_house"))
    
    private lazy var tipLabel: UILabel = {
        let l = UILabel()
        l.textColor = UIColor.darkGrayColor()
        l.font = UIFont.systemFontOfSize(14)
        
        //自适应大小
        l.sizeToFit()
        
        //设置居中
        l.textAlignment = .Center
        
        //设置自动换行
        l.numberOfLines = 0
        return l
    }()
    
    //登录和注册按钮
    private lazy var loginBtn: UIButton = {
        let btn = UIButton()
        
        //这是背景图片
        let image = UIImage(named: "common_button_white_disable")!
        let capW = Int(image.size.width * 0.5)
        let capH = Int(image.size.height * 0.5)
        
        btn.setBackgroundImage(image.stretchableImageWithLeftCapWidth(capW, topCapHeight: capH), forState: .Normal)
        btn.setTitle("登录", forState: .Normal)
        btn.setTitleColor(UIColor.darkGrayColor(), forState: .Normal)
        btn.titleLabel?.font = UIFont.systemFontOfSize(14)
        btn.sizeToFit()
        return btn
        
    }()
    
    
    private lazy var registerBtn: UIButton = {
        let btn = UIButton()
        
        //这是背景图片
        btn.setBackgroundImage(UIImage(named: "common_button_white_disable"), forState: .Normal)
        btn.setTitle("注册", forState: .Normal)
        btn.setTitleColor(themeColor, forState: .Normal)
        btn.titleLabel?.font = UIFont.systemFontOfSize(14)
        btn.sizeToFit()
        return btn
        
    }()
    
    
    
}

